| Olympic Host Countries | 0 | - | 4.98 | 189,490 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 134,834 |
| Countries by Sports League Revenue | 0 | - | 4.93 | 67,137 |
| Countries with the Most Downhill Skiing | 0 | - | 4.90 | 53,978 |
| Summer Olympic City Bids | 0 | - | 4.92 | 39,477 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 257,819 |
| Countries with the Fastest 100 Meter Sprinters | 0 | - | 4.45 | 82,164 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 202,234 |
| Countries with the Most Summer Olympics Medals | 0 | - | 4.53 | 88,260 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 158,484 |
| Countries with Megacities | 0 | - | 4.99 | 217,594 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 186,478 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 106,114 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 126,463 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 73,039 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 269,503 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,380,235 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 364,514 |
| Countries with the Most Winter Olympics Medals | 0 | - | 4.46 | 159,103 |
| Countries with Major League Baseball Players | 0 | - | 4.56 | 64,719 |
| Countries with the Most Golf Courses | 0 | - | 4.55 | 52,751 |
| Countries Where Baseball is the Most Popular Sport | 0 | - | 4.42 | 53,707 |
| Countries that Export the Most Football Players | 0 | - | 4.42 | 52,689 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 81,784 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 257,192 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 115,808 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 107,599 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 88,045 |
| Countries That Use the Euro | 0 | - | 4.93 | 75,722 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 104,316 |
| The Only European Country ... | 0 | - | 4.92 | 197,667 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 201,700 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 89,415 |
| Countries of Africa | 0 | - | 5.00 | 2,353,879 |
| Countries with Most Grand Slam Tennis Titles | 0 | - | 4.38 | 56,498 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 25,290 |
| Countries With The Most NHL Hockey Players | 0 | - | 4.46 | 91,863 |
| Countries With the Most NBA Players | 0 | - | 4.47 | 108,587 |
| Top 10 Countries with the Most Registered Soccer Players | 0 | - | 4.13 | 66,777 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.71 | 36,979 |
| Countries of Europe by Population | 0 | - | 4.98 | 149,525 |
| Most Populous Countries by Year | 0 | - | 4.81 | 102,561 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 81,652 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 103,345 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 100,661 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 107,297 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 84,830 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 214,376 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 130,021 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 72,564 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 80,536 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 64,442 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 70,409 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 92,484 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.93 | 1,268,219 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 203,291 |
| Countries of the Middle East | 0 | - | 4.95 | 187,711 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 82,559 |
| Slavic Countries | 0 | - | 4.96 | 106,485 |
| African Island Countries | 0 | - | 4.96 | 95,906 |
| Straight Shot to Antarctica | 0 | - | 4.92 | 40,320 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 159,507 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 163,524 |
| Countries of North America Quiz | 0 | - | 5.00 | 952,621 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 119,564 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 101,207 |
| African Countries with the Shortest Names | 0 | - | 4.97 | 128,798 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 208,342 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 185,746 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 148,018 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 110,211 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 138,363 |
| 10 Westernmost Countries in Europe | 0 | - | 4.95 | 145,412 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 111,278 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 154,711 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 94,487 |
| 10 Easternmost Countries in Asia | 0 | - | 4.98 | 102,892 |
| Boundary Waters | 0 | - | 4.93 | 85,287 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 32,910 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 91,127 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 219,868 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 172,647 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 169,810 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 98,492 |
| Countries by Population Decrease | 0 | - | 4.46 | 48,444 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 104,684 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 153,468 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.61 | 61,816 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.91 | 19,601 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 168,322 |
| Winter Olympics Hosts | 0 | - | 4.33 | 74,874 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 217,789 |
| Countries Formerly in Yugoslavia | 0 | - | 4.96 | 119,901 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 129,175 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 106,305 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 101,143 |
| Monarchies of Europe | 0 | - | 4.89 | 93,099 |
| Monarchies of Asia | 0 | - | 4.96 | 68,085 |
| Athletes by Country Quiz #1 | 0 | - | 4.35 | 44,775 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 124,308 |
| Countries that Start with A | 0 | - | 4.98 | 2,061,197 |
| Countries that Start with B | 0 | - | 4.95 | 2,198,967 |
| Countries that Start with C | 0 | - | 4.96 | 1,744,175 |
| Countries that Start with D | 0 | - | 4.96 | 656,911 |
| Countries that Start with E | 0 | - | 4.95 | 1,312,380 |
| Countries that Start with G | 0 | - | 4.97 | 1,434,820 |
| Countries that Start with H | 0 | - | 4.96 | 560,126 |
| Countries that Start with I | 0 | - | 4.92 | 1,234,679 |
| Countries that Start with J | 0 | - | 4.98 | 560,474 |
| Countries that Start with K | 0 | - | 4.97 | 771,066 |
| Countries that Start with L | 0 | - | 4.98 | 1,038,019 |
| Countries that Start with N | 0 | - | 4.93 | 1,064,431 |
| Countries that Start with P | 0 | - | 4.95 | 1,164,743 |
| Countries that Start with S | 0 | - | 4.98 | 1,687,669 |
| Countries that Start with T | 0 | - | 4.89 | 968,869 |
| Countries that Start with U | 0 | - | 4.97 | 870,109 |
| Countries that Start with V | 0 | - | 4.98 | 582,245 |
| Countries that Start with F | 0 | - | 4.83 | 580,888 |
| Countries that Start with M | 0 | - | 4.97 | 1,324,513 |
| The Only African Country ... | 0 | - | 4.98 | 124,689 |
| The Only American Country ... | 0 | - | 4.93 | 115,711 |
| African Countries by a Single Clue | 0 | - | 4.92 | 65,992 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.95 | 29,423 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 69,686 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 90,317 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 129,857 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.88 | 99,264 |
| European Countries with One Border | 0 | - | 4.97 | 175,297 |
| European Countries with the Fewest Borders | 0 | - | 4.98 | 171,683 |
| Countries Closest to Africa | 0 | - | 4.95 | 151,054 |
| Countries of the World Quiz | 0 | - | 5.00 | 44,237,702 |
| Boxing Countries | 0 | - | 4.26 | 30,538 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 97,013 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.90 | 54,113 |
| North American Sports Cities | 0 | - | 4.77 | 165,845 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 381,508 |
| UK Immigration by Country | 0 | - | 4.94 | 133,684 |
| Central American Countries | 0 | - | 4.98 | 148,042 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 109,048 |
| Total United States Immigration by Country | 0 | - | 4.89 | 104,358 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 101,748 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 47,952 |
| Asian Countries with the Most Christians | 0 | - | 4.87 | 91,673 |
| African Countries with the Most Christians | 0 | - | 4.92 | 71,877 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.94 | 201,778 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 189,925 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 115,842 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 108,587 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 87,074 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 97,256 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 55,606 |
| European Countries NOT in NATO | 0 | - | 4.78 | 39,059 |
| Olympic Medalists in Ice Hockey | 0 | - | 4.27 | 30,019 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 75,578 |
| The Only Remaining Asian Country . . . | 0 | - | 4.70 | 42,810 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 187,573 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 121,738 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 120,103 |
| Countries That Border Russia | 0 | - | 4.98 | 445,415 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.85 | 85,716 |
| Countries Bordering France | 0 | - | 4.87 | 374,362 |
| Countries Bordering Germany | 0 | - | 4.99 | 355,783 |
| Most Visited Countries by Australians | 0 | - | 4.94 | 88,050 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 65,140 |
| Countries Closest to Australia | 0 | - | 4.99 | 161,874 |
| Countries Closest to the Persian Gulf | 0 | - | 4.92 | 80,311 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 232,888 |
| Germany Country Quiz | 0 | - | 4.81 | 149,752 |
| Russia Country Quiz | 0 | - | 4.83 | 109,346 |
| Italy Country Quiz | 0 | - | 4.81 | 116,651 |
| Japan Country Quiz | 0 | - | 4.92 | 127,760 |
| United Kingdom Country Quiz | 0 | - | 4.95 | 129,862 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.83 | 33,364 |
| Tuvalu Country Quiz | 0 | - | 4.85 | 20,509 |
| Kenya Country Quiz | 0 | - | 4.86 | 32,990 |
| Palau Country Quiz | 0 | - | 4.89 | 21,826 |
| World Geography on a Map #1 | 0 | - | 4.94 | 70,846 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.39 | 82,157 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 146,400 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 117,233 |
| World Capitals Quiz | 0 | - | 5.00 | 4,799,036 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 80,315 |
| Random European Capital to Country | 0 | - | 4.97 | 181,639 |
| Random European Country to Capital | 0 | - | 4.93 | 142,253 |
| Random Asian Country to Capital | 0 | - | 4.91 | 90,886 |
| Random Asian Capital to Country | 0 | - | 4.97 | 96,037 |
| Random African Country to Capital | 0 | - | 4.94 | 66,538 |
| Sahara Desert Countries | 0 | - | 4.97 | 145,052 |
| Himalayan Countries | 0 | - | 4.95 | 121,730 |
| Andean Countries | 0 | - | 4.92 | 68,398 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 56,468 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 112,666 |
| Coffee Producing Countries | 0 | - | 4.83 | 59,666 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 59,094 |
| Danube Countries | 0 | - | 4.97 | 60,720 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 96,688 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 81,762 |
| Countries with the Best Passports | 0 | - | 4.81 | 80,218 |
| Countries with the Worst Passports | 0 | - | 4.92 | 64,338 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 137,732 |
